That Time The Mermaid Made Mayhem (Ava Storm Supernatural Mystery, #3)

Ava Storm is a witch. A divorced witch. Unfortunately, she can't get rid of her ex-husband, Liam Wilcox, who has been turned into a mangy tabby cat.

Ava has no time for that nonsense. She's been asked by Liam's way too attractive older brother to help solve a murder. . . that might involve mermaids.